Recoil construction



0- R. H. s. HUGHES RECOILCONSTRUCTION Filed April 27, 1937 Haw/er h? 5. #0677155 Patented Aug. 27, 1940 UNITED STATES RECOIL CON STRUCTION Robert H. S. llughes, Baltimore,

Md., assignor of one-half to Milton Roberts, Baltimore, Md. Application April 27, 1937, Serial No. 139,274

1 Claim.

My invention relates to control of recoil and is particularly adapted forthe control of recoil of firearms of all sizes, though its application is not exclusively in this field.

An object of the invention is to provide a construction which is simple and strong, easy to manufacture, repair, and replace.

A further object of the invention is to provide a construction which can be readily adapted to various sizes of firearms without necessitating complete redesign of the recoil.

With these and other objects in view, which may be incident to my improvements, the invention consists in the parts and combinations to be hereinafter set forth and claimed, with the understanding that the several necessary elements comprising my invention may be varied in construction, proportions and arrangements, without departing from the spirit and scope of the appended claim.

In order to make my invention more clearly understood, I have shown in the accompanying drawing means for carrying the same into practical efiect without limiting the improvements in their useful applicationsto the particular constructions which, for the purpose of explanation, have been made the subject of illustration.

Referring to the drawing:

Figure 1 is a longitudinal sectional view taken through my recoil control muzzle of the firearm.

Figure 2is a view taken along the line 22 of Figure 1, looking in the direction of the arrows.

Figure 3 is a view taken along the line 3-3 of Figure 1, looking in the direction of the arrows.

Figure 4 is a view taken along the line l4 of Figure 1, looking in the direction of the arrows.

Referring to the drawing, I have shown a recoil control having a body I which is provided with an extension 2 which has in it a seal aperture 3 throughv which the bullet discharged from the firearm is adapted to pass.

The body I is provided with a combustion chamber 4 and a combustion chamber 5 of larger diameter than the combustion chamber 4, and located to the rear of the combustion chamber 4. In the combustion chamber 4 is provided a gas shoulder 6, against which the gasses are adapted to expand. The expanding gasses are discharged rearwardly through rearwardly extended main ports 1, which are formed in the body I and which tend to minimize the- -r e'coil of the firearm. These ports I, as is readily ap- 55 parent from an inspection of Figure 3, are not and through theadapted to completely encircle the body I, but there is a blank space'8 left at-the bottom. This arrangement of ports tends to minimize climb.

Since the ports at the top of the body I exert a downward moment of force against the body I, 5 and hence the muzzle of the firearm, climb is minimized, for there are no complemental ports at the 'bottom of the body to exert an upward movement of force.

The combustion chamber of larger diameter 10 5 is provided with auxiliary ports 9 which are directed substantially at right angles to the axis .of the bore of the firearm. These ports 9 are shown to be in fore and after alignment with the main ports 1. The ports 9 increase the efliciency of the recoil mechanism, tending to eliminate blast and objectionable noise. The body I is provided with an aperture of greater diameter than the combustion chamber 5. This aperture I have indicated by the numeral I0. There is provided a shoulder II where the aperture I0 terminates at its front end. I

An adapter collar or ring I2, which may be designated an insert member, is press fitted into the aperture I0 and has its against the shoulder II.

It is to be noted that the front end of the insert member I3 is approximately even with the front end, I 4 of the muzzle of the firearm I5, the bore lb of the firearm I5 terminating at approximately the same point with respect to its fore and aft position as the front I3 of insert member I2.

The staggered apertures of the combustion chamber 4, the larger combustion chamber 5, and theaperture I0, permit the device to be easily constructed, since the boring outof the\-device does not require any hooked tools,and the operation is a simple one. Where the device maybe die cast, the metal of the body, for instance, in the neighborhood of the aperture I0, if the'apetture I0 is' bored, will form therein.The insert device I2 will over these gas pockets and tend to strengthen he device and'prevent any objectionable weakness. The press fit of the insert I2, and the fact that the insert I2 is held in position the end I! of the body I down over the insert I2 permits a very simple and strong construction.

The body I is held in place by means of one or i more set screws I8, which pass througli the body 5 I, and insert member I2,.a'nd contact the outside of the muzzle of the firearm. These set screws insert member I2 is provided with internal scre hold the recoil control firmly in .position."" Tlgiy' threads front end I3 lying 25- tend to: have gas pockets by simply swaging' I9, which are adapted to cooperate wl h external screw threads formed on themuzzle of the firearm.

While I have shown and described the preferred embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein set forth by way of illustration, as it is apparent that many changes and variations may be made therein, by those skilled in the art, without departing from the spirit of the invention, or exceeding the scope of the appended claim.

I claim:

A recoil controlling device for guns adapted to fire projectiles, comprising a body, means for securing the body to the muzzle of a gun and in line with the bore thereof, said body when so secured having an inlet port in alignment with the bore of the gun, said body having a cavity in communication and alignment with the inlet port and consisting of two coaxially aligned cylindrical chambers of different diameters, the one of larger diameter being adjacent the inlet port, said body having a seal port in alignment with the inlet port and the bore of the gun and extending from the forward end or the body to the forward end of the chamber 0! smaller diameter, said body having an arcuate series of discharge ports extending outwardly and rearwardly from the forward part of the cylindrical chamber of smaller diameter adjacent the forward wall thereof, said body also having an arcuate series of bailie ports extending thru the side wall of the cylindrical chamber of larger diameter between the inlet port and the outer ends of the discharge ports.

ROBERT H. s. HUGHES. 

